
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>网页</title>
<style type="text/css">
	*{margin: 0;padding: 0;}
	.a{height: 50px;line-height: 50px;text-align: center;background-image:url(./nav_blue.jpg);width: 500px;margin: 0px auto;}
	.b{width:100%;height: 300px;text-align: center;}
    .b-a{width: 500px;height: 230px;background-image:url(./tk.jpg);margin: 0px auto;padding-top:40px;}
    .b-a-a{float:center;width: 200px;height: 200px;margin: 0px auto;}
    iframe{width:100%;height: 100%}
	
	</style>
</head>
<body>

<div class="a"><h1>下雨预测装置</h1></div>
<div class="b">
	<div class="b-a">
	    <div class="b-a-a">
    	 <iframe src="http://localhost:3006/" frameborder="0"></iframe>
    	 </div>
	</div>
	
</div>

</body>
</html>